Bicycle tank



FIG. 1 is a top plan view of the bicycle tank design of the presentinvention showing my new design;

FIG. 2 is a rear end view thereof;

FIG. 3 is side elevational view thereof with the broken lines showingsolely environmental structure and forming no part of the claimeddesign;

FIG. 4 is a front end view thereof; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a bicycle tank, as shown and described.